Fine/Precise Red Line Laser Diode Module Class IIIa: 3mW/ 635nm [CP-TIM-230-9-3L-635] - $64.90 : Calpac Lasers Diode Modules Pointers and Levels, 20 years of experience specializing in industrial and promotional laser diode
Waterproof D20x90mm Focusable 520nm Green Line Laser Module with Adapter&Bracket | eBay